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Monday, 15 June 2026
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Mathematics Past Questions and Answers

Topic: Number bases

Jamb Mathematics Questions - Number bases

Question 26:
If y = 8x\(^3\) - 3x\(^2\) + 7x - 1, find \(\frac{\mathrm d^2 y}{\mathrm d x^2}\).
  • A 48x - 6
  • B 11x\(^2\) + 6x - 7
  • C 32x + 7
  • D 24x\(^2\) - 6x + 7
View Answer & Explanation
Question 27:
Differentiate \(\frac{2x}{\sin x}\) with respect to x.
  • A \(2 \cot x \sec x (1 + \tan x)\)
  • B \(2 \csc x - x \cot x\)
  • C \(2x \csc x + \tan x\)
  • D \(2\csc x(1 - x\cot x)\)
View Answer & Explanation
Question 28:
The histogram above represents the number of candidates who did Further Mathematics examination in a school. How many candidates scored more than 40?
  • A 100
  • B 79
  • C 150
  • D 90
View Answer & Explanation
Question 29:
If \(\sin x = \frac{4}{5}\), find \(\frac{1 + \cot^2 x}{\csc^2 x - 1}\).
  • A \(\frac{13}{2}\)
  • B \(\frac{25}{9}\)
  • C \(\frac{3}{13}\)
  • D \(\frac{4}{11}\)
View Answer & Explanation
Question 30:
If \(N = \begin{pmatrix} 3 & 5 & -4 \\ 6 & -3 & -5 \\ -2 & 2 & 1 \end{pmatrix}\), find \(|N|\).
  • A 65
  • B 23
  • C 17
  • D 91
View Answer & Explanation